Originally Posted by Tiersten
Go look at the thread in the Developer forum here. It will explain what needs to be done to have the usbNetwork option reeenabled.
Why are you asking about this anyway if you don't want to do it to your own Kindle? Be careful about what you do once you enable usbNetwork as you can cause your Kindle not to boot if you don't know what you're changing.
I once wrecked an iIiad by tinkering and now am completely cured; I don't even look at the part of the screen where it says: Kindle Developper's Corner.